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From "Ananth T. Sarathy" <ananth.t.sara...@gmail.com>
Subject Re: stackoverflow error
Date Thu, 29 Oct 2009 14:41:46 GMT
No idea.
Ananth T Sarathy


On Thu, Oct 29, 2009 at 5:59 AM, Andrew Purtell <apurtell@apache.org> wrote:

> The FindBugs static code checker flagged WildcardColumnTracker.checkColumn
> also, null dereference possible on some code paths. I checked in a fix which
> did not hurt this issue but would not help either. I added null tests and
> flow control to prevent the issue seen by the checker but did not change (if
> I was succesful in my intent) any semantics. That code should be
> refactored/rewritten for easier comprehension and cleaner flow control.
>
>   - Andy
>
>
>
>
> ________________________________
> From: stack <stack@duboce.net>
> To: hbase-user@hadoop.apache.org
> Sent: Thu, October 29, 2009 1:35:27 PM
> Subject: Re: stackoverflow error
>
> Whoever wrote that checkColumn code was obviously trying to be a
> smarty-pants but missed a vital check.  Any of you fellas have an idea what
> the columns are that are causing this infinite recursion?  Otherwise will
> poke around tomorrow to see if can create it artificially.
>
> Thanks,
> St.Ack
>
> On Wed, Oct 28, 2009 at 6:38 PM, Gary Helmling <ghelmling@gmail.com>
> wrote:
>
> > I just updated to 0.20.1 and think that I'm seeing this as well.
> >
> > Here's a sample of the client log: http://pastebin.com/m549fbcfa
> > and a sample of the regionservers: http://pastebin.com/m5a8e89c3
> >
> > Best I can tell, it seems to be data related in that it's reproducible
> with
> > gets on specific rows.  Other rows in the same region work normally.
> >
> >
> >
> > On Wed, Oct 28, 2009 at 9:25 PM, Jean-Daniel Cryans <jdcryans@apache.org
> > >wrote:
> >
> > > BTW this is https://issues.apache.org/jira/browse/HBASE-1781
> > >
> > > J-D
> > >
> > > On Wed, Oct 28, 2009 at 6:24 PM, Ananth T. Sarathy
> > > <ananth.t.sarathy@gmail.com> wrote:
> > > > It's not advancing. I am not sure how you tell which region...
> > > > here is some of the output from the shell
> > > > http://pastebin.org/49134
> > > >
> > > >
> > > > Where can I look for that info
> > > > Ananth T Sarathy
> > > >
> > > >
> > > > On Wed, Oct 28, 2009 at 6:24 PM, stack <stack@duboce.net> wrote:
> > > >
> > > >> Same region over and over?  Then it ain't advancing?  Or does it
> vary?
> > > >> St.Ack
> > > >>
> > > >> On Wed, Oct 28, 2009 at 3:09 PM, Ananth T. Sarathy <
> > > >> ananth.t.sarathy@gmail.com> wrote:
> > > >>
> > > >> > ok... I  when I try to do i straight countin the shell
> > > >> > I get
> > > >> >
> > > >> >
> > > >> > 09/10/28 18:08:56 DEBUG client.HTable$ClientScanner: Advancing
> > > internal
> > > >> > scanner to startKey at
> > > >> >
> > > >> >
> > > >>
> > >
> >
> 'FileZilla\x203.2.33.2.3http:\x2F\x2Ffilehippo.com\x2Fdownload_filezilla\x2F5408\x2
> > > >> >
> > > >> > which has been repeating for a while...
> > > >> > Ananth T Sarathy
> > > >> >
> > > >> >
> > > >> > On Wed, Oct 28, 2009 at 5:08 PM, stack <stack@duboce.net>
wrote:
> > > >> >
> > > >> > > You using a filter of some kind?   What kinda scan is it?
 Are
> you
> > > on
> > > >> > > latest
> > > >> > > hbase?  Easy way to check healthyness is scan of the table.
 Use
> > > count
> > > >> in
> > > >> > > shell or rowcounter mr job.  If you are just doing straight
> scan,
> > > then
> > > >> > > something is up.  Looks at the 0.20.1 bug fixes to see if
any
> > > address a
> > > >> > > stackoverflow issue.  Otherwise, try to figure why its happening
> > for
> > > >> you
> > > >> > > and
> > > >> > > not for the rest of us.
> > > >> > > St.Ack
> > > >> > >
> > > >> > > On Wed, Oct 28, 2009 at 1:51 PM, Ananth T. Sarathy <
> > > >> > > ananth.t.sarathy@gmail.com> wrote:
> > > >> > >
> > > >> > > > I am getting a stackoverflow error while I am iterating
> through
> > a
> > > >> table
> > > >> > > > scan
> > > >> > > >
> > > >> > > > http://pastebin.com/mc940416
> > > >> > > >
> > > >> > > > is there any maintiance type task I should run to make
my
> > > >> regionservers
> > > >> > > are
> > > >> > > > all copacetic?
> > > >> > > >
> > > >> > > > Ananth T Sarathy
> > > >> > > >
> > > >> > >
> > > >> >
> > > >>
> > > >
> > >
> >
>
>
>
>
>

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